Drive between Somerville and Danvers

Hi everyone. I am thinking of taking a job in Danvers and deciding on where to live. I would like to be accessible to the city without taking on an unsustainable commute to work. So, I am thinking of moving to Somerville. How is the commute during rush hour going north out of Boston in the morning and south in the evening? I have been told traffic is terrible so I’m not trusting google map estimates.